Hair drying apparatus



Dec. 7, 1937. J. M. KELLER HAIR'DRYING AFPAHATUS Filed Dec. 28, 1931INVENTOR. JOHN 7 KELLER. BY

v Q9 A TTORNEYS Patented Dec. 7, 1937 UNITED STATES 2,101,502 1mm DRYINGAPPARATUS I John M. Keller, Lakewood, Ohio- Application December 28,1931, Serial No. 583,468

Claims.

This invention relating as indicated to hair drying apparatus hasparticular reference to an apparatus designed to be placed over theusers head so that the hair, after washing, may be 5 quickly andefliciently dried without the usual discomforts incidental to the use ofapparatus as heretofore constructed.

As is well known to those familiar with the art, the operation of dryinghair, after washing w and the like, requires a considerable period oftime, which is undesirable from the standpoint of the time consumed, aswell as the physical discomfort of the individual during the dryingoperation. The reason why such a long period is required to dry the hairis that no means has been provided for quickly carrying away themoisture from the vicinity of the hair so that the drying operation mayproceed continuously in a fresh supply of heated dry air.

It is among the objects of my invention to provide an apparatus whichshall be capable of performing a hair drying operation in a minimum oftime and with increased efficiency.

Other objects of my invention will appear as the description proceeds.

To the accomplishment of the foregoing and related ends, said invention,then consists of the means hereinafter fully described and par-'ticularly pointed out in the claims.

The annexed drawing and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical' forms in which theprlnciple of the invention may be used.

In said annexed drawing the single figure is a side elevational view,partially in section, of the apparatus comprising my invention.

Referring now more specifically to the drawit is to be noted that theapparatus com-' prising my invention may be supported on a suitablemobile stand, generally indicated at I, which, at its upper end; isprovided with a tele: scopic extension 2 secured in adjusted elevationby a wing-nut 3. The extension 2 is provided with a laterally extendingarm 4 which terminally supports the apparatus more specificallycomprising my invention.

The hair drying apparatus comprising my invention consists of a motor 5which may be of the usual construction so that a further detail of suchmotor will not be shown or described.

Secured to the motor or the arm 4 and depending therefrom is abell-shaped casing '6 which has associated therewith an inner casingPATENT} OFFICE I defining a space .8 therebetween. The lower ends of thecasings 6 and I are interconnected and the space 8 closed by somesuitable means such as a rebent portion 9 of the inner shell. Mounted inthe space 8 between the casings 6 and l is a heating element lllwhichmay be of 'any common form of construction so that a fur-' therdescription thereof is believed unnecessary. The heating element willpreferably be in the form of a resistance unit connected to suitableleads for supplying electric current thereto.

Secured within the inner shell I and extending thereacross is aforaminous diaphragm H which is designed to admit the passage of airtherethrough and yet keep the hair from being blown upwardly as it isbeing dried.

Mounted on the armature shaft of the motor 5 is a fan, generallyindicated at l2, which has impeller blades l3 secured thereto. Theimpeller blades are so formed that when the armature of the motor isrotated in the normal direction, the air will be forced thereby upwardlyin the direction indicated by the arrows. The impeller blades 13 haveextensions l4 secured thereto or formed integrally therewith, suchextensions being formedas impeller blades of a pitch opposite to that ofthe blades l3, so that the air isforced thereby. downwardly through thespace 8 ,as indicated by the arrows.

Ingress orifices l5 are provided for the air 30 in the upper portion ofthe casing 6 and egress orifices it are provided in the upper portion ofsuch casing .for the air exhausted from the apparatus by the impellerblades l3.

An annular baffle member I1 is secured to the inner surface of thecasing l6 and disposed towards the juncture between the impeller bladesl3 and I so as to maintain separate the streams of incoming and outgoingair. The lower portion of the inner casing I is provided with a plu- 4rality of egress orifices l8 which project the air supplied by theimpeller blades I4 against the head of the user whose hair is to bedried.

In order to insure that none of the humidified air discharged from theapparatus will be drawn 4 back into the same by means of the impellersI4, an annular baflle i9 is provided-which insures that the stream ofincoming air will be drawn from a direction counter to the direction offlow of the stream of outgoing air. 6

The operation of the above described apparatus. is briefly as follows:

The telescopic extension 2 will be adjusted so that the hood comprisingthe inner and outer casing, l and 6 respectively, will be positionedover i the head of the user whose hair is to be dried. The motor 5 willthen be energized to drive the fan I! in a direction to produce an airflow, as indicated by the arrows. The incoming air is forced downwardlythrough the space 8 between the inner and outer shells and is raised intemperature by means of the heating element Ill. The air will then bedischarged through the orifices ll against and through the hair'which isto be dried. The impeller blades I I of the fan will evacuate the spacewithin the inner shell so that there is a constant interchange of airover and through the hair being dried. Due to the fact that the moistureevaporating from the hair is immediately carried away'and a new supplyof dry air provided, the drying operation will proceed at the fastestpossible rate.

The provision of the impeller blades ll evacuating the inner casing I,also prevents any of the drying air which passes through the orifices i8from blowing down onto the shoulders and neck of the user. The apparatuscomprising my invention, therefore, eliminates the occurrence ofobjectionable drafts on the neck and shoulders of the user whichhasheretofore been the source not only of considerable physicaldiscomfort but has actually been injurious to the health.

I claim:

1. In hair drying apparatus, a hood adapted to be placed over the usershead and comprising spaced inner and outer shells, means closing thelower end of the space between said shells, apertures in the lowerportion of said inner shell, and a fan mounted across the upper end ofsaid shells and having blades provided with oppositely pitched areasrespectively opposite the spaces 'defined by said shells.

2. In hair drying apparatus, a hood adapted to be placed over the usershead and comprising spaced inner and" outershells, means closing thelower end of the space between said shells, apertures in the lowerportion of said inner shell, a foraminous diaphragm in said inner shell,and a fan mounted across the upper end of said shells and having bladesprovided with oppositely pitched areas respectively opposite the spacesdefined by said shells.

3. In hair drying apparatus, a hood adapted to be placed over the usershead and comprising spaced inner and outer shells, means closing thelower end of the space between said shells, apertures in the lowerportion of said inner shell, a heating element disposed in the spacebetween said shells, and a fan mounted across the upper end of saidshells and having blades provided with oppositely pitched areasrespectively opposite the spaces defined by said shells.

4. In hair drying apparatus, a hood adapted to be placed over the usershead and comprising spaced inner and outer shells, means closing thelower end of the space between said shells, apertures in the lowerportion of said inner shell, a heating element disposed in the spacebetween said shells, and a fan mounted across the upper end of saidshells and having blades provided with oppositely pitched areasrespectively opposite the" spaces defined by said shells.

5. In hair drying apparatus, a bell shaped outer shell, an inner shell,means closing the lower end of the space between said shells, aperturesin the lower portion of said inner shell, a heating element disposed inthe space between said shells,

a foraminous diaphragm in said inner shell, a fan in said outer shellhaving blades provided with oppositely pitched areas respectivelyopposite the spaces defined by said shells, a plurality of annularlyarranged apertures in the upper portion of said outer shell, and abaflie disposed between said annular rows of apertures.

JOHN M. KELLER.

